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AIX Version 4.3 Differences Guide

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cloned alt_inst_rootvg. The default flags are -acgX. The -l flag must be<br />

used with this option.<br />

-l images_location<br />

Location of the installp images, or updates, to apply after a clone of<br />

the rootvg. This can be a directory full path name or a device name<br />

(for example, /dev/rmt0).<br />

-f fix_bundle<br />

Optional file with a list of APARs to install after a clone of the rootvg.<br />

The -l flag must be used with this option.<br />

-F fixes Optional list of APARs (such as IX123456) to install after a clone of the<br />

rootvg. The -l flag must be used with this option.<br />

-e exclude_list<br />

Optional exclude list to use when cloning rootvg. The rules for<br />

exclusion follow the pattern matching rules of the grep command. The<br />

exclude_list must be a full path name.<br />

-w filesets<br />

List of filesets to install after cloning a rootvg. The -l flag must be used<br />

with this option.<br />

The following are supplied as parameters<br />

Target Disks<br />

Specifies the name, or names, of the target disks where the alternate<br />

rootvg will be created. The disk, or disks, must not currently contain<br />

any volume group definition. The lspv command should show these<br />

disks as belonging to volume group None.<br />

6.8.2 Using alt_disk_install<br />

The following are examples of using the alt_disk_install command:<br />

1. To clone the running 4.2.0 rootvg to hdisk3 and apply updates from /updates<br />

to bring the cloned rootvg to a 4.2.1 level:<br />

# alt_disk_install -C -F 4.2.1.0_<strong>AIX</strong>_ML -l /updates hdisk3<br />

The bootlist will then be set to boot from hdisk3 at the next reboot.<br />

2. To install a <strong>4.3</strong> mksysb image on hdisk3, then run a customized script<br />

(/home/myscript) to copy some user files over to the alternate rootvg file<br />

systems before reboot:<br />

# alt_disk_install -d /mksysb_images/<strong>4.3</strong>_mksysb -s /home/myscript hdisk3<br />

6.8.3 Alternate Disk Installation Enhancements (<strong>4.3</strong>.1)<br />

The alt_disk_install command gives users another way to update <strong>AIX</strong> to the<br />

next release or maintenance level without having to schedule an extended period<br />

of system downtime. The function is included in the bos.alt_disk_install package,<br />

which is shipped on the <strong>AIX</strong> media. The package is not installed by default during<br />

system installation.<br />

<strong>AIX</strong> <strong>4.3</strong>.1 has enhanced the alternate disk installation function by splitting the<br />

task into three distinct phases. A system administrator now has greater control<br />

124 <strong>AIX</strong> <strong>Version</strong> <strong>4.3</strong> <strong>Differences</strong> <strong>Guide</strong>

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